Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques

Photochromic dye-sensitized solar cells (DSSCs) are novel semi-transparent photovoltaic devices that self-adjust their optical properties to the irradiation conditions, a feature that makes them especially suitable for building integrated photovoltaics. These novel solar cells have already achieved...

ver descrição completa

Detalhes bibliográficos
Autores: Anta, Juan, Riquelme Expósito, Antonio Jesús, Mwatati Mwalukuku, Valid, Sánchez-Fernández, Patricia, Liotier, Johan, Escalante, Roman, Oskam, Gerko, Demadrille, Renaud
Tipo de documento: artigo
Data de publicação:2021
País:España
Recursos:Universidad Pablo de Olavide (UPO)
Repositório:RIO. Repositorio Institucional Olavide
Idioma:inglês
OAI Identifier:oai:rio.upo.es:10433/11649
Acesso em linha:http://hdl.handle.net/10433/11649
Access Level:Acceso aberto
Palavra-chave:APC-UPO
id ES_137c873cff90a4e07d0dc294c208492a
oai_identifier_str oai:rio.upo.es:10433/11649
network_acronym_str ES
network_name_str España
repository_id_str
spelling Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation TechniquesAnta, JuanRiquelme Expósito, Antonio JesúsMwatati Mwalukuku, ValidSánchez-Fernández, PatriciaLiotier, JohanEscalante, RomanOskam, GerkoDemadrille, RenaudAPC-UPOPhotochromic dye-sensitized solar cells (DSSCs) are novel semi-transparent photovoltaic devices that self-adjust their optical properties to the irradiation conditions, a feature that makes them especially suitable for building integrated photovoltaics. These novel solar cells have already achieved efficiencies above 4%, and there are multiple pathways to improve the performance. In this work, we conduct a full characterization of DSSCs with the photochromic dye NPI, combining electrical impedance spectroscopy (EIS) and intensity-modulated photocurrent spectroscopy (IMPS). We argue that the inherent properties of the photochromic dye, which result in a modification of the functioning of the solar cell by the optical excitation that also acts as a probe, pose unique challenges to the interpretation of the results using conventional models. Absorption of light in the visible range significantly increases when the NPI dye is in the activated state; however, the recombination rate also increases, thus limiting the efficiency. We identify and quantify the mechanism of enhanced recombination when the photochromic dye is activated using a combination of EIS and IMPS. From the comparison to a state-of-the-art reference dye (RK1), we were able to detect a new feature in the IMPS spectrum that is associated with the optical activation of the photochromic dye, providing a useful tool for assessing the electronic behavior of the device under different conditions of light excitation. This study provides guidelines to adequate characterization protocols of photochromic solar cells and essential insights on the interfacial electronic processes.ACS20212021-10-1820212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10433/11649reponame:RIO. Repositorio Institucional Olavideinstname:Universidad Pablo de Olavide (UPO)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:rio.upo.es:10433/116492026-06-13T12:46:27Z
dc.title.none.fl_str_mv Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
title Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
spellingShingle Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
Anta, Juan
APC-UPO
title_short Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
title_full Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
title_fullStr Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
title_full_unstemmed Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
title_sort Characterization of Photochromic Dye Solar Cells Using Small-Signal Perturbation Techniques
dc.creator.none.fl_str_mv Anta, Juan
Riquelme Expósito, Antonio Jesús
Mwatati Mwalukuku, Valid
Sánchez-Fernández, Patricia
Liotier, Johan
Escalante, Roman
Oskam, Gerko
Demadrille, Renaud
author Anta, Juan
author_facet Anta, Juan
Riquelme Expósito, Antonio Jesús
Mwatati Mwalukuku, Valid
Sánchez-Fernández, Patricia
Liotier, Johan
Escalante, Roman
Oskam, Gerko
Demadrille, Renaud
author_role author
author2 Riquelme Expósito, Antonio Jesús
Mwatati Mwalukuku, Valid
Sánchez-Fernández, Patricia
Liotier, Johan
Escalante, Roman
Oskam, Gerko
Demadrille, Renaud
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv APC-UPO
topic APC-UPO
description Photochromic dye-sensitized solar cells (DSSCs) are novel semi-transparent photovoltaic devices that self-adjust their optical properties to the irradiation conditions, a feature that makes them especially suitable for building integrated photovoltaics. These novel solar cells have already achieved efficiencies above 4%, and there are multiple pathways to improve the performance. In this work, we conduct a full characterization of DSSCs with the photochromic dye NPI, combining electrical impedance spectroscopy (EIS) and intensity-modulated photocurrent spectroscopy (IMPS). We argue that the inherent properties of the photochromic dye, which result in a modification of the functioning of the solar cell by the optical excitation that also acts as a probe, pose unique challenges to the interpretation of the results using conventional models. Absorption of light in the visible range significantly increases when the NPI dye is in the activated state; however, the recombination rate also increases, thus limiting the efficiency. We identify and quantify the mechanism of enhanced recombination when the photochromic dye is activated using a combination of EIS and IMPS. From the comparison to a state-of-the-art reference dye (RK1), we were able to detect a new feature in the IMPS spectrum that is associated with the optical activation of the photochromic dye, providing a useful tool for assessing the electronic behavior of the device under different conditions of light excitation. This study provides guidelines to adequate characterization protocols of photochromic solar cells and essential insights on the interfacial electronic processes.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-10-18
2021
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10433/11649
url http://hdl.handle.net/10433/11649
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 Internacional
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ACS
publisher.none.fl_str_mv ACS
dc.source.none.fl_str_mv reponame:RIO. Repositorio Institucional Olavide
instname:Universidad Pablo de Olavide (UPO)
instname_str Universidad Pablo de Olavide (UPO)
reponame_str RIO. Repositorio Institucional Olavide
collection RIO. Repositorio Institucional Olavide
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403679019237376
score 15,300724

Registros relacionados